So there are certain facts about the digestive tract such that if you think about them you can't do something, kiss the person.

所以有某些关于消化道的事实,如果你考虑了它们，你就不能做某件事了，亲吻别人。

耶鲁公开课 - 死亡课程节选

It's sort of like the digestive tract story.

这是和消化道故事差不多的故事。

耶鲁公开课 - 死亡课程节选

Now, well, you're making out after having had dinner, and while you're sitting there making out, food is making its way down Peggy Sue's digestive tract, being turned into shit.

现在，你们在吃完饭后亲热，当你们坐下来亲热时，食物正沿着Peggy，Sue的消化道向下走，正要变成大便。

耶鲁公开课 - 死亡课程节选